Reproducing the Lisa 2 Card Stack: The 512K RAM Card

[warmech]

Pin 1 of U5, U6, and U7 are tied to ground. The Via on the J jumper also goes to ground. (on my populated board anyway)

Well hot diggety - that solves that mystery! Thanks again, so so much, for checking that! With that out of the way, I have a few final checks and then I think this thing is safe to call done.